Chemistry

An isotope of an element is an atom which has a different number of ____________.

• Neutrons

• Electrons

• Protons

• Ions

An ionic compound _____________ electricity when in its solid state.

• Doesn't conduct

• Conducts

• Emitts

• Absorbs

A covalent compound ____________ charged.

• Is not

• Is

• Does

• Dome

Covalent bonds happen between ______________ and ______________.

• Non-metals, non-metals

• Metals, non-metals

• Non-metals, ions

• Ions, metals

Ionic bonds happen between ______________ and _____________.

• Metals, non-metals

• Metals, metals

• Non-metals, non-metals

• Metals, ions

Metallic bonds happen _________ the metal.

• Within

• Outside

• Over

Ionic compounds are arranged in patterns called _________________.

• Lattices

• OIL RIG

• Oxidisers

• Reducers

An isotope of rubidium has a nucleon number of 85. Choose the accurate numbers of sub-atomic particles. (Hint: the proton number of rubidium is 37)

• P- 37, E-37, N-48

• P- 39, E-37, N-46

• P-47, E-47, N-29

• P-46, E- 39, N-39

During the process of refining copper, the anode tends to shrink because _________________________.

• Copper loses electrons

• Copper gains electrons

• Copper loses protons

• Copper loses mass

During the process of purifying copper, the anode slime appears to contain metals like _____________ , _____________ and _____________

• Gold, silver, platinum

• Graphite, copper, platinum

• Sulfur, iodine, bromine

• Aluminium, gold, silver